DTC P2279: Intake Air System Leak Detected — Honda Element I (2004-2009)

DTC P2279: Intake Air System Leak Detected Honda Element I

Note. If DTC P0443 is stored at the same time as DTC P2279, troubleshoot DTC P0443 first, then recheck for DTC P2279. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

Check for vacuum leaks at these parts: PCV valve PCV hose EVAP canister purge line Throttle body Intake manifold Brake booster and hose Are the parts OK? YES - Go to step 2 . NO - Repair or replace the leaking part(s), then go to step 4 .
Start the engine. Hold the engine speed at 3,000 RPM without load (in Park or neutral) until the radiator fan comes on, then let it idle for 1 minute.
Monitor the OBD STATUS for DTC P2279 in the DTCs MENU with the HDS. Does the screen indicate FAILED? YES - Check the camshaft timing (see step 1 on «CAM CHAIN INSTALLATION»(ref-220562-S26839483192006022000000) ), then go to step 4 . NO - If the screen indicates PASSED, intermittent failure, system is OK at this time. If the screen indicates NOT COMPLETED, go to step 2 and recheck.
Reset the ECM/PCM with the HDS.
Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-220572-S08440202922006022000000) ).
Start the engine. Hold the engine speed at 3,000 RPM without load (in Park or neutral) until the radiator fan comes on, then let it idle for 1 minute.
Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P2279 is indicated, check for vacuum leaks at the PCV valve, the PCV hose, the EVAP canister purge line, the throttle body, the intake manifold, or the brake booster hose, then go to step 4. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - Go to step 8
Monitor the OBD STATUS for DTC P2279 in the DTCs MENU with the HDS. Does the screen indicate PASSED? YES - Troubleshooting is complete. NO - If the screen indicates FAILED, go to step 1 and recheck. If the screen indicates NOT COMPLETED, go to step 6 and recheck.

Scheme 246

Scheme 246: PCV Valve Inspection

Check the PCV valve (A), hoses (B), and connections for leaks or restrictions.
At idle, make sure there is a clicking sound from the PCV valve when the hose between the PCV valve and intake manifold is lightly pinched (A) with your fingers or pliers. If there is no clicking sound, check the PCV valve washer for cracks or damage. If the washer is OK, replace the PCV valve and recheck.